The closest we have to a Malbec is the Weinköning Syrah or the Carl Jung Shiraz in terms of flavour.
You won’t find a really full-bodied alcohol-free wine. It’s the high alcohol content in an Argentinian Malbec that gives it the body you’re looking for.
When alcohol is removed from wine, much of the body is lost.
In some cases extra sugar adds body to the wine but most people don’t want extra sugar and want their wines dry.
Most of our wines are of European origin and European wines don’t tend to have the high alcohol volumes to start with that you get in South American wines.
If it’s flavour you want then the Syrah or Shiraz might suit you.